Some thoughts
I'll be the first to say it right here: I really don't like orchestra hits. They sound kinda cheesy and unbelievable to me, and case in point, they are the same way in this song. It would have been much better if you sequenced the actual instruments to do the hits instead of a generic orchestra hit soundfont. Plus, with those extra instruments, you could have done some cool things to the song. I mean, doesn't it just sound ridiculous that the strings in your orchestra hit don't sound the same as the strings that are doing the dang melody? Why should that be?
Also, this is way too short. I was expecting a nice resolution to the tension building up throughout the entire piece, but you end if before any hint of relief comes along, and it leaves you hanging in not exactly the best way... This could have been done with a simple horn soli, or something to that effect... Remember, not every 'epic classical song' needs to have this insane buildup of tension all-throughout... You have to know how to diversify your emotional expression.
As well, this could have used a few more instruments. The piccolo/flute comes in and does a nice accompaniment for a little while... and then just leaves and never returns. Why? It doesn't make any musical sense. It's like the musical equivalent of ADHD. This could have used more instruments not only to diversify things, but to give support to the main simplistic-yet-enjoyable melody.
This needs a lot more work; or rather, since no one goes back to remaster songs, when you start a similar project, keep these things in mind:
-Actual instruments instead of orchestra hits
-have instruments come and go WITHIN REASON... don't forget about what you're using!
-while too much accompaniment leaves things sounding cluttered and muddy, no accompaniment makes things sound just... eh.
-Musical resolutions to building tension are good medicine
My thoughts.